Chapter 08: Growth, Measurement, and Nutrition ["formerly Growth and Nutrition"]
MULTIPLE CHOICE
1. The gonads begin to secrete estrogen and testosterone during:
a. infancy.
b. puberty.
c. pregnancy.
d. early adulthood.
ANS: B
At puberty, the gonads secrete testosterone and estrogen. As a result, secondary sex characteristics
(e.g., genitalia growth) begin to appear. Maturation occurs at a mean age of
11.5 years in females and 13.5 years in males.
2. Developmental changes of puberty are caused mainly by the interaction of the pituitary gland,
gonads, and:
a. hypothalamus.
b. islet cells. c. thalamus. d. thymus.
ANS: A
Under the influence of the hypothalamus, pituitary gland, and gonads, developmental changes of
puberty are established.
3. After 50 years of age, stature:
a. becomes fixed.
b. begins a barely perceptible secondary increase.
c. increases at a rate of 0.5 cm/year.
d. declines.
https://pasinggrades.com/
, ANS: D
As the individual reaches 50 years of age, the intervertebral disk begins to thin and become more
compressed, which leads to a decline in stature.
4. By 10 to 12 years of age, lymphatic tissues are about:
a. 25% of adult size.
b. 50% of adult size.
c. the same as adult size.
d. twice the size of those in the adult.
ANS: D
Lymphatic tissues are small compared with total body size, but they are almost fully developed at
birth. They grow fast and are about twice the adult size by age 10 to 12 years.
5. During adolescence, the head size normally increases as a result of:
a. sinus development.
b. brain mass increase.
c. evolution of lymphatic tissue.
d. hypertrophy of myelin.
ANS: A
As the facial sinuses grow, the head size enlarges its surface area to accommodate their growth.
6. Gender-specific skeletal differences first occur during:
a. the second stage of fetal development.
b. late infancy.
c. early childhood.
d. adolescence.
ANS: D
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